What it is
Porphyridium Cruentum Extract is obtained from a red unicellular marine microalga rich in sulfated polysaccharides and other water-soluble components. In cosmetic formulas it is included to support skin conditioning and a smooth, hydrated feel. It often appears in the water phase of emulsions at low use levels alongside other botanical and biotechnological actives.
Safety & warnings
Marine algal extracts of this type are generally well tolerated in cosmetic use. As with any botanical or biotechnological extract, sensitive individuals can occasionally react, and the finished product's overall formulation determines tolerability.
Origin & sourcing
Natural, biotechnological. It is produced from cultivated Porphyridium cruentum, a red microalga, with the active fraction typically being the polysaccharide-rich extract recovered from the cultured biomass or its secreted material.
Questions everyone asks
What is Porphyridium cruentum?
It is a red marine microalga whose extract is used in cosmetics as a skin-conditioning and soothing ingredient, valued for its polysaccharide content.
Does it provide UV protection?
No. It is not a UV filter and does not contribute measured sun protection; in sunscreens it serves as a supporting conditioning ingredient.